54 乘法 21 等于多少？

54 × 20 = 1080 54 × 22 = 1188 54 × 19 = 1026 54 × 23 = 1242 54 × 24 = 1296 54 × 18 = 972 54 × 25 = 1350 54 × 17 = 918 53 × 21 = 1113 55 × 21 = 1155 56 × 21 = 1176 52 × 21 = 1092 57 × 21 = 1197 51 × 21 = 1071 58 × 21 = 1218 50 × 21 = 1050 14 × 81 = 1134 18 × 63 = 1134 21 × 54 = 1134 27 × 42 = 1134 42 × 27 = 1134 63 × 18 = 1134 70 × 9 = 630 78 × 30 = 2340 26 × 38 = 988 35 × 68 = 2380 16 × 18 = 288 8 × 91 = 728 71 × 19 = 1349 9 × 91 = 819